ALSA project - the C library reference

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Macros | Typedefs | Functions
pcm_plugin.h File Reference

Common PCM plugin code. More...

Go to the source code of this file.

## Macros
#define | SND_PCM_PLUGIN_RATE_MIN 4000
#define | SND_PCM_PLUGIN_RATE_MAX 768000
#define | SND_PCM_PLUGIN_ROUTE_FLOAT 1
#define | SND_PCM_PLUGIN_ROUTE_RESOLUTION 16
#define | SND_PCM_PLUGIN_ROUTE_HALF (SND_PCM_PLUGIN_ROUTE_RESOLUTION / 2)
#define | SND_PCM_PLUGIN_ROUTE_FULL SND_PCM_PLUGIN_ROUTE_RESOLUTION

## Typedefs
typedef int | snd_pcm_route_ttable_entry_t

## Functions
int | snd_pcm_hw_open (snd_pcm_t **pcmp, const char *name, int card, int device, int subdevice, snd_pcm_stream_t stream, int mode, int mmap_emulation, int sync_ptr_ioctl)
| Creates a new hw PCM.
int | _snd_pcm_hw_open (snd_pcm_t **pcmp, const char *name, snd_config_t *root, snd_config_t *conf, snd_pcm_stream_t stream, int mode)
| Creates a new hw PCM.
int | snd_pcm_copy_open (snd_pcm_t **pcmp, const char *name, snd_pcm_t *slave, int close_slave)
| Creates a new copy PCM.
int | _snd_pcm_copy_open (snd_pcm_t **pcmp, const char *name, snd_config_t *root, snd_config_t *conf, snd_pcm_stream_t stream, int mode)
| Creates a new copy PCM.
int | snd_pcm_linear_open (snd_pcm_t **pcmp, const char *name, snd_pcm_format_t sformat, snd_pcm_t *slave, int close_slave)
| Creates a new linear conversion PCM.
int | _snd_pcm_linear_open (snd_pcm_t **pcmp, const char *name, snd_config_t *root, snd_config_t *conf, snd_pcm_stream_t stream, int mode)
| Creates a new linear conversion PCM.
int | snd_pcm_lfloat_open (snd_pcm_t **pcmp, const char *name, snd_pcm_format_t sformat, snd_pcm_t *slave, int close_slave)
| Creates a new linear conversion PCM.
int | _snd_pcm_lfloat_open (snd_pcm_t **pcmp, const char *name, snd_config_t *root, snd_config_t *conf, snd_pcm_stream_t stream, int mode)
| Creates a new linear<->float conversion PCM.
int | snd_pcm_mulaw_open (snd_pcm_t **pcmp, const char *name, snd_pcm_format_t sformat, snd_pcm_t *slave, int close_slave)
| Creates a new Mu-Law conversion PCM.
int | _snd_pcm_mulaw_open (snd_pcm_t **pcmp, const char *name, snd_config_t *root, snd_config_t *conf, snd_pcm_stream_t stream, int mode)
| Creates a new Mu-Law conversion PCM.
int | snd_pcm_alaw_open (snd_pcm_t **pcmp, const char *name, snd_pcm_format_t sformat, snd_pcm_t *slave, int close_slave)
| Creates a new A-Law conversion PCM.
int | _snd_pcm_alaw_open (snd_pcm_t **pcmp, const char *name, snd_config_t *root, snd_config_t *conf, snd_pcm_stream_t stream, int mode)
| Creates a new A-Law conversion PCM.
int | snd_pcm_adpcm_open (snd_pcm_t **pcmp, const char *name, snd_pcm_format_t sformat, snd_pcm_t *slave, int close_slave)
| Creates a new Ima-ADPCM conversion PCM.
int | _snd_pcm_adpcm_open (snd_pcm_t **pcmp, const char *name, snd_config_t *root, snd_config_t *conf, snd_pcm_stream_t stream, int mode)
| Creates a new Ima-ADPCM conversion PCM.
int | snd_pcm_iec958_open (snd_pcm_t **pcmp, const char *name, snd_pcm_format_t sformat, snd_pcm_t *slave, int close_slave, const unsigned char *status_bits, const unsigned char *preamble_vals, int hdmi_mode)
| Creates a new IEC958 subframe conversion PCM.
int | _snd_pcm_iec958_open (snd_pcm_t **pcmp, const char *name, snd_config_t *root, snd_config_t *conf, snd_pcm_stream_t stream, int mode)
| Creates a new IEC958 subframe conversion PCM.
int | snd_pcm_route_load_ttable (snd_config_t *tt, snd_pcm_route_ttable_entry_t *ttable, unsigned int tt_csize, unsigned int tt_ssize, unsigned int *tt_cused, unsigned int *tt_sused, int schannels)
| Load route matrix.
int | snd_pcm_route_determine_ttable (snd_config_t *tt, unsigned int *tt_csize, unsigned int *tt_ssize)
| Determine route matrix sizes.
int | snd_pcm_route_open (snd_pcm_t **pcmp, const char *name, snd_pcm_format_t sformat, int schannels, snd_pcm_route_ttable_entry_t *ttable, unsigned int tt_ssize, unsigned int tt_cused, unsigned int tt_sused, snd_pcm_t *slave, int close_slave)
| Creates a new Route & Volume PCM.
int | _snd_pcm_route_open (snd_pcm_t **pcmp, const char *name, snd_config_t *root, snd_config_t *conf, snd_pcm_stream_t stream, int mode)
| Creates a new Route & Volume PCM.
int | snd_pcm_rate_open (snd_pcm_t **pcmp, const char *name, snd_pcm_format_t sformat, unsigned int srate, const snd_config_t *converter, snd_pcm_t *slave, int close_slave)
| Creates a new rate PCM.
int | _snd_pcm_rate_open (snd_pcm_t **pcmp, const char *name, snd_config_t *root, snd_config_t *conf, snd_pcm_stream_t stream, int mode)
| Creates a new rate PCM.
int | snd_pcm_hooks_open (snd_pcm_t **pcmp, const char *name, snd_pcm_t *slave, int close_slave)
| Creates a new hooks PCM.
int | _snd_pcm_hooks_open (snd_pcm_t **pcmp, const char *name, snd_config_t *root, snd_config_t *conf, snd_pcm_stream_t stream, int mode)
| Creates a new hooks PCM.
int | snd_pcm_ladspa_open (snd_pcm_t **pcmp, const char *name, const char *ladspa_path, unsigned int channels, snd_config_t *ladspa_pplugins, snd_config_t *ladspa_cplugins, snd_pcm_t *slave, int close_slave)
| Creates a new LADSPA<->ALSA Plugin.
int | _snd_pcm_ladspa_open (snd_pcm_t **pcmp, const char *name, snd_config_t *root, snd_config_t *conf, snd_pcm_stream_t stream, int mode)
| Creates a new LADSPA<->ALSA PCM.
int | snd_pcm_jack_open (snd_pcm_t **pcmp, const char *name, snd_config_t *playback_conf, snd_config_t *capture_conf, snd_pcm_stream_t stream, int mode)
| Creates a new Jack PCM.
int | _snd_pcm_jack_open (snd_pcm_t **pcmp, const char *name, snd_config_t *root, snd_config_t *conf, snd_pcm_stream_t stream, int mode)
| Creates a new Jack PCM (internal)

## Detailed Description

Common PCM plugin code.

Author
  Abramo Bagnara abram.nosp@m.o@al.nosp@m.sa-pr.nosp@m.ojec.nosp@m.t.org
  Jaroslav Kysela perex.nosp@m.@per.nosp@m.ex.cz

Date
  2000-2001

Application interface library for the ALSA driver. See the PCM (digital audio) plugins page for more details.

Warning
  Using of contents of this header file might be dangerous in the sense of compatibility reasons. The contents might be freely changed in future.